Jeff of the consistently awesome Beautiful Atrocities links to someone who hates Cameron Diaz, for good reason. I haven't seen Trippin', but it sounds like a real turd. There aren't many things more annoying than watching rich people blather about how bad progress and industry are.
There aren't many real actors left, people who become different people for the purposes of an acting role. Cameron Diaz certainly isn't one of them, and while she does a good job of playing a happy, exuberant and dorky girl in movies, I think that's just the persona she shrouds herself in all the time so others will like her. I'll bet her real personality is the one she played in Vanilla Sky, the cruel, desperate stalker bitch. Which is why she was so convincing.
Plus she has Grinch mouth. It's creepy.